Init upload

main/Kconfig

@@ -0,0 +1,27 @@
+menu "WiFi Configuration"
+
+    config WIFI_SSID
+        string "WiFi SSID"
+        default "Wokwi-GUEST"
+        help
+            Specify the WiFi SSID to connect to.
+
+    config WIFI_PASSWORD
+        string "WiFi Password"
+        default ""
+        help
+            Specify the WiFi password.
+
+    config WIFI_AUTH_MODE
+        hex "WiFi Authentication Mode"
+        default 0
+        help
+            Specify the authentication mode:
+            0 - WIFI_AUTH_OPEN
+            1 - WIFI_AUTH_WEP
+            2 - WIFI_AUTH_WPA_PSK
+            3 - WIFI_AUTH_WPA2_PSK
+            4 - WIFI_AUTH_WPA_WPA2_PSK
+            5 - WIFI_AUTH_WPA2_ENTERPRISE
+
+endmenu

main/main.c

@@ -1,13 +1,125 @@
-#include <stdio.h>
-/*c语言开发*/
-void app_main(void)
-{
-    printf("the template successfully created\n");
+#include <string.h>
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "esp_system.h"
+#include "esp_log.h"
+#include "esp_event.h"
+#include "nvs_flash.h"
+#include "esp_wifi.h"
+#include "esp_netif.h"
+#include "esp_http_client.h"
+#include "cJSON.h"
+
+#define WIFI_SSID "Wokwi-GUEST" // Open access point, no password required
+#define TAG "GEOLOCATION"
+#define URL "http://ip-api.com/json"
+
+static EventGroupHandle_t s_wifi_event_group;
+const int WIFI_CONNECTED_BIT = BIT0;
+const int WIFI_FAIL_BIT = BIT1;
+
+static void event_handler(void* arg, esp_event_base_t event_base, int32_t event_id, void* event_data) {
+    if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_START) {
+        esp_wifi_connect();
+    } else if (event_base == WIFI_EVENT && event_id == WIFI_EVENT_STA_DISCONNECTED) {
+        esp_wifi_connect();
+        ESP_LOGI(TAG, "retry to connect to the AP");
+        xEventGroupSetBits(s_wifi_event_group, WIFI_FAIL_BIT);
+    } else if (event_base == IP_EVENT && event_id == IP_EVENT_STA_GOT_IP) {
+        ip_event_got_ip_t* event = (ip_event_got_ip_t*) event_data;
+        ESP_LOGI(TAG, "got ip:%s", ip4addr_ntoa(&event->ip_info.ip));
+        xEventGroupSetBits(s_wifi_event_group, WIFI_CONNECTED_BIT);
+    }
+}
+
+void wifi_init_sta(void) {
+    s_wifi_event_group = xEventGroupCreate();
+    ESP_ERROR_CHECK(esp_netif_init());
+    ESP_ERROR_CHECK(esp_event_loop_create_default());
+    esp_netif_create_default_wifi_sta();
+
+    wifi_init_config_t cfg = WIFI_INIT_CONFIG_DEFAULT();
+    ESP_ERROR_CHECK(esp_wifi_init(&cfg));
+
+    esp_event_handler_instance_t instance_any_id;
+    esp_event_handler_instance_t instance_got_ip;
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(WIFI_EVENT, ESP_EVENT_ANY_ID, &event_handler, NULL, &instance_any_id));
+    ESP_ERROR_CHECK(esp_event_handler_instance_register(IP_EVENT, IP_EVENT_STA_GOT_IP, &event_handler, NULL, &instance_got_ip));
+
+    wifi_config_t wifi_config = {
+        .sta = {
+            .ssid = WIFI_SSID,
+            .password = "",
+            .threshold.authmode = WIFI_AUTH_OPEN,
+        },
+    };
+
+    ESP_ERROR_CHECK(esp_wifi_set_mode(WIFI_MODE_STA));
+    ESP_ERROR_CHECK(esp_wifi_set_config(ESP_IF_WIFI_STA, &wifi_config));
+    ESP_ERROR_CHECK(esp_wifi_start());
+
+    ESP_LOGI(TAG, "wifi_init_sta finished.");
+
+    EventBits_t bits = xEventGroupWaitBits(s_wifi_event_group, WIFI_CONNECTED_BIT | WIFI_FAIL_BIT, pdFALSE, pdFALSE, portMAX_DELAY);
+
+    if (bits & WIFI_CONNECTED_BIT) {
+        ESP_LOGI(TAG, "connected to ap SSID:%s", WIFI_SSID);
+    } else if (bits & WIFI_FAIL_BIT) {
+        ESP_LOGI(TAG, "Failed to connect to SSID:%s", WIFI_SSID);
+    } else {
+        ESP_LOGE(TAG, "UNEXPECTED EVENT");
+    }
+}
+
+esp_err_t http_event_handler(esp_http_client_event_t *evt) {
+    switch (evt->event_id) {
+        case HTTP_EVENT_ON_DATA:
+            if (!esp_http_client_is_chunked_response(evt->client)) {
+                cJSON *json = cJSON_Parse(evt->data);
+                if (json == NULL) {
+                    ESP_LOGE(TAG, "JSON parsing error");
+                    break;
+                }
+
+                cJSON *json_item = json->child;
+                while (json_item) {
+                    ESP_LOGI(TAG, "%s: %s", json_item->string, cJSON_GetStringValue(json_item));
+                    json_item = json_item->next;
+                }
+
+                cJSON_Delete(json);
+            }
+            break;
+        default:
+            break;
+    }
+    return ESP_OK;
 }
 
+void http_get_task(void *pvParameters) {
+    esp_http_client_config_t config = {
+        .url = URL,
+        .event_handler = http_event_handler,
+        .method = HTTP_METHOD_POST
+    };
+
+    esp_http_client_handle_t client = esp_http_client_init(&config);
+    esp_err_t err = esp_http_client_perform(client);
 
-/*c++语言开发*/
-// extern "C" void app_main(void)
-// {
+    if (err == ESP_OK) {
+        ESP_LOGI(TAG, "HTTP POST Status = %d, content_length = %d",
+                 esp_http_client_get_status_code(client),
+                 esp_http_client_get_content_length(client));
+    } else {
+        ESP_LOGE(TAG, "HTTP POST request failed: %s", esp_err_to_name(err));
+    }
 
-// }
+    esp_http_client_cleanup(client);
+    vTaskDelete(NULL);
+}
+
+void app_main() {
+    nvs_flash_init();
+    wifi_init_sta();
+    xTaskCreate(&http_get_task, "http_get_task", 8192, NULL, 5, NULL);
+}